Cita APA (7th ed.)

Powell, G. R. (2008). Marketing calculator: Measuring and managing return on marketing investment. John Wiley & Sons (Asia).

Cita Chicago (17th ed.)

Powell, Guy R. Marketing Calculator: Measuring and Managing Return on Marketing Investment. Singapore ; Hoboken, NJ: John Wiley & Sons (Asia), 2008.

Cita MLA (9th ed.)

Powell, Guy R. Marketing Calculator: Measuring and Managing Return on Marketing Investment. John Wiley & Sons (Asia), 2008.